Rubbing mechanism for carding-machines.



No. '638,163. Patented Nov. 28, |899'. G. BARBER & .l. CRUMIE.

RUBBING MEGHANISM FR CARDING MACHINES.

(Appucamn mea' Mar. 7,. 1899.)

(No Modell.)

' EHI ummmlnnlmllmm llllll llillll Irren l Srarns GEORGE BARBER, OFPHILADELPHIA, PENNSYLVANIA, AND JOHN CROMIE, OF CAMDEN, NEW JERSEY,ASSIGNORS TO THE M. A.` FURBUSH dr SON MACHINE COMPANY, OF CAMDEN, NEWJERSEY.

RUBBING MECHANISM FOR CARD!l\lC:"1-'VACHINESi1 SPECIFICATION formingpart of Letters 132311112111', NO. 638,163, dated. November 28, '1899.

Application led March '7, 1899. Serial No. 7081101. (No model.)

To a/ZZ whom t may concern:

Be it known that we, GEORGE BARBER, of Philadelphia, Pennsylvania, andJOHN CRO- MIE, of Camden, New Jersey, citizens of the United States,haveinvented certain Improvements in Rubbing Mechanism for Carding-Machines,of which the following is a specification.

The object of our invention is to so construct xo rubbing mechanism forcarding-machines as to produce a better roving or sliver than ispossible with rubbing mechanism of the usual construction. This objectwe attain in the manner hereinafter set forth, reference being r 5 hadto the accompanying drawings,in which- Figure 1 is alongitudinalsectional diagram t illustrating the elements of ourimproved rubbing mechanism; and Fig. 2 is a sectional plan view of thesame, together with sufficient of 2o the operating mechanism to convey aproper understanding of our invention.

Usually the rubbing mechanism employed in connection with each doffer ofa condensing carding-m achine for rubbing the narrow webs z 5 of fleeceinto rovings or slivers consists of upper and lower reciprocated frames,each carrying its respective element of the rubbing device-*as rolls oran apron, or both-one frame being moved to the right as the other ismoved 3o to the left, so that each element of the rubbing device,whether upper or lower, moves as a unit, and consequently there is thesame extent of lateral reciprocation and the same speed of reciprocatingmovement from the re- 3 5 ceiving to the delivery end of the rubbingdevice. It is advisable in many cases, however, to employ two sets ofrubbing mechanismthat is to say, a primary set for acting upon thenarrow webs of iieece as they come from 4o the doffer and rubbing thesame into the form of crude slivers or rovings, and a secondary set foracting upon these crude slivers or rovings and rubbing them into theirfinal form-the two sets being independently driven, so that the secondset may, if desired, be given a shorter stroke and a higher 'speed thanthe primary set. Attempts heretofore made in this direction have notbeen successful, because, mainly, of the character of the rubbingdevices employed. Thus in one instance with which we are familiar theprimary set of rubbing mechanism comprised three rub-rolls, one aboveand two below, and the secondary set comprised five rub-rolls, two aboveand three below.

In carrying out our invention we use rubbing mechanism comprising twopairs of aprons, the primary pair being so driven as to form the desiredcrude sliver and the sec ondary pair being independently driven, wherebythey are adapted to rub this crude sliver into a finished sliver of anydesired degrec of fineness. The first pair of aprons rub the narrow Websof iieece without any draws ing action thereupon, and hence have notendency to break even a nue and delicate lieece, and in the secondpairof aprons also there is a lack of draft upon the partly-rubbedsliver, while owing to the fact that the aprons grip the sliver from endto end of the run they are Well adapted for condensing the sliver bymeans of a short quick rub.

In the drawings,1 represents the lXed frame of the rubbing mechanism,and 2 and 3 eccentric or crank shafts vertically mounted in bearings atone end of said framework, the shaft 2 being intended for impartingreciprocating movement to the primary pair of aprons 8 and 9, and theshaft 3 being intended for imparting reciprocating movement to thesecondary pair of aprons l0 and 1l. The two shafts are geared togetherby spur-wheels 4: and 5, which in the present instance are so designedthat the shaft 3 will rotate at a higher speed than the shaft 2, and theeccentrics or cranks of said shaft 3 have a shorter throw than those ofthe shaft 2, so that in connection with this higher speed ofreciprocation of the secondary pair of aprons there will be a shorterstroke or lateral reciprocation of the same. The cranks or eccentrics ofeach shaft act upon boxes 6, which are free to slide laterally inyokes,each forming part of a frame 47, carrying the rolls which supportand operate one of the aprons, there being one of these frames for eachapron of each pair and each frame being suitably guided in or on thefixed structure of the devlce.

Having thus described our invention, We In testimony whereof We havesigned our I claim and desire to secure by Letters Patentnames to thisspecification in the presence of The combinatiomin rubbing mechanism fortwo subscribing Witnesses.

carding-machines, of primary and secondary l 5 sets of rubbers, each setcomprising upper and lower aprons, With mechanism for reciprocating saidsecondary set of rubbers at a higher Witnesses:

rate of speed than the primary set, substan- JOS. H. KLEIN,

tally as specified. 4F. E. BECHTOLD.

